From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v4 1/1] drm/i915: Consult VBT "LVDS config" bits to determine whether internal LVDS is present Date: Fri, 25 May 2018 18:02:35 +0300 Message-ID: <20180525150235.GB23723@intel.com> References: <20180508124136.10969-2-ville.syrjala@linux.intel.com> <20180518150138.18361-1-ville.syrjala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id DF7606E938 for ; Fri, 25 May 2018 15:02:39 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20180518150138.18361-1-ville.syrjala@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: Jani Nikula , Ondrej Zary List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBNYXkgMTgsIDIwMTggYXQgMDY6MDE6MzhQTSArMDMwMCwgVmlsbGUgU3lyamFsYSB3 cm90ZToKPiBGcm9tOiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwu Y29tPgo+IAo+IFZCVCBzZWVtcyB0byBoYXZlIHNvbWUgYml0cyB0byB0ZWxsIHVzIHdoZXRoZXIg dGhlIGludGVybmFsIExWRFMgcG9ydAo+IGhhcyBzb21ldGhpbmcgaG9va2VkIHVwLiBJbiB0aGVv cnkgb25lIG1pZ2h0IGV4cGVjdCB0aGUgVkJUIHRvIG5vdCBoYXZlCj4gYSBjaGlsZCBkZXZpY2Ug Zm9yIHRoZSBMVkRTIHBvcnQgaWYgdGhlcmUncyBubyBwYW5lbCBob29rZWQgdXAsIGJ1dAo+IGlu IHByYWN0aWNlIG1hbnkgVkJUcyBzdGlsbCBhZGQgdGhlIGNoaWxkIGRldmljZS4gVGhlICJMVkRT IGNvbmZpZyIgYml0cwo+IHNlZW0gbW9yZSByZWxpYWJsZSB0aG91Z2gsIHNvIGxldCdzIGNoZWNr IHRob3NlLgo+IAo+IFNvIGZhciB3ZSd2ZSB1c2VkIHRoZSAiTFZEUyBjb25maWciIGJpdHMgdG8g Y2hlY2sgZm9yIGVEUCBzdXBwb3J0IG9uCj4gSUxLKywgYW5kIGRpc2FibGUgdGhlIGludGVybmFs IExWRFMgd2hlbiB0aGUgdmFsdWUgaXMgMy4gVGhhdCB2YWx1ZQo+IGlzIGFjdHVhbGx5IGRvY3Vt ZW50ZWQgYXMgIkJvdGggaW50ZXJuYWwgTFZEUyBhbmQgU0RWTyBMVkRTIiwgYnV0IGluCj4gcHJh Y3RpY2UgaXQgbG9va3MgdG8gbWVhbiAiZURQIiBvbiBhbGwgdGhlIGlsaysgVkJUcyBJJ3ZlIHNl ZW4uIFNvIGxldCdzCj4ga2VlcCB0aGF0IGludGVycHJldGF0aW9uLCBidXQgZm9yIHByZS1JTEsg d2Ugd2lsbCBjb25zaWRlciB0aGUgdmFsdWUKPiAzIHRvIGFsc28gaW5kaWNhdGUgdGhlIHByZXNl bmNlIG9mIHRoZSBpbnRlcm5hbCBMVkRTLgo+IAo+IEN1cnJlbnRseSB3ZSBoYXZlIDI1IERNSSBt YXRjaGVzIGZvciB0aGUgIm5vIGludGVybmFsIExWRFMiIHF1aXJrLiBJbiBhbgo+IGVmZm9ydCB0 byByZWR1Y2UgdGhhdCBsZXQncyB0b3NzIGluIGEgV0FSTiB3aGVuIHRoZSBETUkgbWF0Y2ggYW5k IFZCVAo+IGJvdGggdGVsbCB1cyB0aGF0IHRoZSBpbnRlcm5hbCBMVkRTIGlzIG5vdCBwcmVzZW50 LiBUaGUgaG9wZSBpcyB0aGF0Cj4gcGVvcGxlIHdpbGwgcmVwb3J0IGEgYnVnLCBhbmQgdGhlbiB3 ZSBjYW4ganVzdCBudWtlIHRoZSBjb3JyZXNwb25kaW5nCj4gZW50cnkgZnJvbSB0aGUgRE1JIHF1 aXJrIGxpc3QuIENyZWRpdHMgdG8gSmFuaSBmb3IgdGhpcyBpZGVhLgo+IAo+IHYyOiBTcGxpdCB0 aGUgYmFzaWMgaW50X2x2ZHNfc3VwcG9ydCB0aGluZyB0byBhIHNlcGFyYXRlIHBhdGNoIChKYW5p KQo+IHYzOiBSZWJhc2UKPiB2NDogTGltaXQgdGhpcyB0byBWQlQgdmVyc2lvbiA+PSAxMzQKPiAK PiBDYzogSmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGludGVsLmNvbT4KPiBDYzogT25kcmVqIFph cnkgPGxpbnV4QHJhaW5ib3ctc29mdHdhcmUub3JnPgo+IFNpZ25lZC1vZmYtYnk6IFZpbGxlIFN5 cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+CgpJIHBpY2tlZCB1cCBKYW5p J3Mgci1iIGZyb20gdjMgYW5kIHB1c2hlZCB0byBkaW5xLiBMZXQncyBzZWUgaG93IGJhZGx5Ckkn bGwgZW5kIHVwIHJlZ3JldHRpbmcgdGhpcyBvbmUuLi4KCj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2Jpb3MuYyAgICAgfCAyOCArKysrKysrKysrKysrKysrKysrKysrKysrLS0t Cj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2x2ZHMuYyAgICAgfCAgNSArKysrLQo+ICBk cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF92YnRfZGVmcy5oIHwgIDIgKy0KPiAgMyBmaWxlcyBj aGFuZ2VkLCAzMCBpbnNlcnRpb25zKCspLCA1IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQg YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9iaW9zLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pbnRlbF9iaW9zLmMKPiBpbmRleCA1Yzg2M2UyNzE0ZWMuLjI2YjU5MTE4ZWY3YiAxMDA2NDQK PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9iaW9zLmMKPiArKysgYi9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9iaW9zLmMKPiBAQCAtNTE4LDkgKzUxOCwzMSBAQCBwYXJzZV9k cml2ZXJfZmVhdHVyZXMoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ICAJaWYg KCFkcml2ZXIpCj4gIAkJcmV0dXJuOwo+ICAKPiAtCWlmIChJTlRFTF9HRU4oZGV2X3ByaXYpID49 IDUgJiYKPiAtCSAgICBkcml2ZXItPmx2ZHNfY29uZmlnID09IEJEQl9EUklWRVJfRkVBVFVSRV9F RFApCj4gLQkJZGV2X3ByaXYtPnZidC5pbnRfbHZkc19zdXBwb3J0ID0gMDsKPiArCWlmIChJTlRF TF9HRU4oZGV2X3ByaXYpID49IDUpIHsKPiArCQkvKgo+ICsJCSAqIE5vdGUgdGhhdCB3ZSBjb25z aWRlciBCREJfRFJJVkVSX0ZFQVRVUkVfSU5UX1NEVk9fTFZEUwo+ICsJCSAqIHRvIG1lYW4gImVE UCIuIFRoZSBWQlQgc3BlYyBkb2Vzbid0IGFncmVlIHdpdGggdGhhdAo+ICsJCSAqIGludGVycHJl dGF0aW9uLCBidXQgcmVhbCB3b3JsZCBWQlRzIHNlZW0gdG8uCj4gKwkJICovCj4gKwkJaWYgKGRy aXZlci0+bHZkc19jb25maWcgIT0gQkRCX0RSSVZFUl9GRUFUVVJFX0lOVF9MVkRTKQo+ICsJCQlk ZXZfcHJpdi0+dmJ0LmludF9sdmRzX3N1cHBvcnQgPSAwOwo+ICsJfSBlbHNlIHsKPiArCQkvKgo+ ICsJCSAqIEZJWE1FIGl0J3Mgbm90IGNsZWFyIHdoaWNoIEJEQiB2ZXJzaW9uIGhhcyB0aGUgTFZE UyBjb25maWcKPiArCQkgKiBiaXRzIGRlZmluZWQuIFJldmlzaW9uIGhpc3RvcnkgaW4gdGhlIFZC VCBzcGVjIHNheXM6Cj4gKwkJICogIjAuOTIgfCBBZGQgdHdvIGRlZmluaXRpb25zIGZvciBWQlQg dmFsdWUgb2YgTFZEUyBBY3RpdmUKPiArCQkgKiAgQ29uZmlnICgwMGIgYW5kIDExYiB2YWx1ZXMg ZGVmaW5lZCkgfCAwNi8xMy8yMDA1Igo+ICsJCSAqIGJ1dCBkb2VzIG5vdCB0aGUgc3BlY2lmeSB0 aGUgQkRCIHZlcnNpb24uCj4gKwkJICoKPiArCQkgKiBTbyBmYXIgdmVyc2lvbiAxMzQgKG9uIGk5 NDVnbSkgaXMgdGhlIG9sZGVzdCBWQlQgb2JzZXJ2ZWQKPiArCQkgKiBpbiB0aGUgd2lsZCB3aXRo IHRoZSBiaXRzIGNvcnJlY3RseSBwb3B1bGF0ZWQuIFZlcnNpb24KPiArCQkgKiAxMDggKG9uIGk4 NXgpIGRvZXMgbm90IGhhdmUgdGhlIGJpdHMgY29ycmVjdGx5IHBvcHVsYXRlZC4KPiArCQkgKi8K PiArCQlpZiAoYmRiLT52ZXJzaW9uID49IDEzNCAmJgo+ICsJCSAgICBkcml2ZXItPmx2ZHNfY29u ZmlnICE9IEJEQl9EUklWRVJfRkVBVFVSRV9JTlRfTFZEUyAmJgo+ICsJCSAgICBkcml2ZXItPmx2 ZHNfY29uZmlnICE9IEJEQl9EUklWRVJfRkVBVFVSRV9JTlRfU0RWT19MVkRTKQo+ICsJCQlkZXZf cHJpdi0+dmJ0LmludF9sdmRzX3N1cHBvcnQgPSAwOwo+ICsJfQo+ICAKPiAgCURSTV9ERUJVR19L TVMoIkRSUlMgU3RhdGUgRW5hYmxlZDolZFxuIiwgZHJpdmVyLT5kcnJzX2VuYWJsZWQpOwo+ICAJ LyoKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHZkcy5jIGIvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHZkcy5jCj4gaW5kZXggY2RhNDZiZmE3MDQxLi5hNzhk MmIxODE4MTkgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHZkcy5j Cj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHZkcy5jCj4gQEAgLTk3Myw4ICs5 NzMsMTEgQEAgdm9pZCBpbnRlbF9sdmRzX2luaXQoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRl dl9wcml2KQo+ICAJCXJldHVybjsKPiAgCj4gIAkvKiBTa2lwIGluaXQgb24gbWFjaGluZXMgd2Ug a25vdyBmYWxzZWx5IHJlcG9ydCBMVkRTICovCj4gLQlpZiAoZG1pX2NoZWNrX3N5c3RlbShpbnRl bF9ub19sdmRzKSkKPiArCWlmIChkbWlfY2hlY2tfc3lzdGVtKGludGVsX25vX2x2ZHMpKSB7Cj4g KwkJV0FSTighZGV2X3ByaXYtPnZidC5pbnRfbHZkc19zdXBwb3J0LAo+ICsJCSAgICAgIlVzZWxl c3MgRE1JIG1hdGNoLiBJbnRlcm5hbCBMVkRTIHN1cHBvcnQgZGlzYWJsZWQgYnkgVkJUXG4iKTsK PiAgCQlyZXR1cm47Cj4gKwl9Cj4gIAo+ICAJaWYgKCFkZXZfcHJpdi0+dmJ0LmludF9sdmRzX3N1 cHBvcnQpIHsKPiAgCQlEUk1fREVCVUdfS01TKCJJbnRlcm5hbCBMVkRTIHN1cHBvcnQgZGlzYWJs ZWQgYnkgVkJUXG4iKTsKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf dmJ0X2RlZnMuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3ZidF9kZWZzLmgKPiBpbmRl eCA0NTg0NjgyMzdiNWYuLjM5YzgwNDYyNDE3OSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pbnRlbF92YnRfZGVmcy5oCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfdmJ0X2RlZnMuaAo+IEBAIC02MzUsNyArNjM1LDcgQEAgc3RydWN0IGJkYl9zZHZvX2x2ZHNf b3B0aW9ucyB7Cj4gICNkZWZpbmUgQkRCX0RSSVZFUl9GRUFUVVJFX05PX0xWRFMJCTAKPiAgI2Rl ZmluZSBCREJfRFJJVkVSX0ZFQVRVUkVfSU5UX0xWRFMJCTEKPiAgI2RlZmluZSBCREJfRFJJVkVS X0ZFQVRVUkVfU0RWT19MVkRTCQkyCj4gLSNkZWZpbmUgQkRCX0RSSVZFUl9GRUFUVVJFX0VEUAkJ CTMKPiArI2RlZmluZSBCREJfRFJJVkVSX0ZFQVRVUkVfSU5UX1NEVk9fTFZEUwkzCj4gIAo+ICBz dHJ1Y3QgYmRiX2RyaXZlcl9mZWF0dXJlcyB7Cj4gIAl1OCBib290X2Rldl9hbGdvcml0aG06MTsK PiAtLSAKPiAyLjE2LjEKCi0tIApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJ bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==